1
Robert L Assell, Charles D Ray: Percutaneous prosthetic spinal disc nucleus and method of manufacture. RayMedica, Dicke Billig & Czaja P A, February 8, 2000: US06022376 (425 worldwide citation)

A capsule-shaped prosthetic spinal disc nucleus for implantation into a human intradiscal space, made of a substantially inelastic constraining jacket surrounding an amorphous polymer core. The constraining jacket has a generally fixed maximum volume and defines a height. The amorphous polymer core ...


2
Assell Robert L, Ray Charles D: Percutaneous prosthetic spinal disc nucleus and method of manufacture. Raymedica, January 3, 2001: EP1063948-A1

A capsule-shaped prosthetic spinal disc nucleus (20) for implantation into a human intradiscal space (60), made of a substantially inelastic constraining jacket (24) surrounding an amorphous polymer core (22). The constraining jacket (24) has a generally fixed maximum volume and defines a height. Th ...


3
Assell Robert L, Ray Charles D: Noyau de disque intervertebral prothetique percutane et procede de fabrication, Percutaneous prosthetic spinal disc nucleus and method of manufacture. Raymedica, Raymedica, SMART & BIGGAR, September 23, 1999: CA2323922

A capsule-shaped prosthetic spinal disc nucleus (20) for implantation into a human intradiscal space (60), made of a substantially inelastic constraining jacket (24) surrounding an amorphous polymer core (22). The constraining jacket (24) has a generally fixed maximum volume and defines a height. Th ...


4
Assell Robert L, Ray Charles D: Percutaneous prosthetic spinal disc nucleus and method of manufacture. Raymedica, CZAJA Timothy A, September 23, 1999: WO/1999/047082

A capsule-shaped prosthetic spinal disc nucleus (20) for implantation into a human intradiscal space (60), made of a substantially inelastic constraining jacket (24) surrounding an amorphous polymer core (22). The constraining jacket (24) has a generally fixed maximum volume and defines a height. Th ...


5
Assell Robert L, Ray Charles D: Percutaneous prosthetic spinal disc nucleus and method of manufacture. Raymedica, November 8, 2007: JP2007-289728

PROBLEM TO BE SOLVED: To provide an elongate prosthetic spinal disc nucleus to be implanted deeply in a nucleus cavity in a spinal disc space of a human body.SOLUTION: A prosthetic spinal disc nucleus 20 to be implanted in the nucleus cavity of the spinal disc made with a pair of vertebral bodies fo ...


6
Assell Robert L, Ray Charles D: Percutaneous prosthetic spinal disc nucleus and method of manufacture. Raymedica, May 25, 2001: KR1020007010193

A capsule-shaped prosthetic spinal disc nucleus (20) for implantation into a human intradiscal space (60), made of a substantially inelastic constraining jacket (24) surrounding an amorphous polymer core (22). The constraining jacket (24) has a generally fixed maximum volume and defines a height. Th ...